%0 Journal Article %A Staub, Thérèse %A Arendt, Vic %A Lasso de la Vega, Esther Calvo %A Braquet, Pierre %A Michaux, Christian %A Kohnen, Michel %A Tsobo, Chantal %A Abdelrahman, Tamir %A Wienecke-Baldacchino, Anke %A Francois, Jean-Hugues %T Case series of four re-infections with a SARS-CoV-2 B.1.351 variant, Luxembourg, February 2021 %D 2021 %J Eurosurveillance %V 26 %N 18 %P 2100423 %R doi:https://doi.org/10.2807/1560-7917.ES.2021.26.18.2100423 %K variant %K SARS-CoV-2 %K COVID-19 %K healthcare workers %K re-infection %K outbreak %K PCR %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.18.2100423